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3 years ago

Please help meeeeeeeeee

Mathematics

1 answer:

Yuliya22 [10]3 years ago

4 0

Answer:

FRACTION DECIMAL PERCENT

3/100 0.03 3%

3/2 1.5 150%

13/20 0.65 65%

2/3 0.6667 66.67%

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4x^2+4x+1=9 solutions

Artyom0805 [142]

Answer:

4(x-2)(x+1)=0

Step-by-step explanation:

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3 years ago

1. NBC: A jacket you like costs $64. You have a coupon for 20% off. How much will you pay for the jacket?

Artemon [7]

Answer:

$51.2

Step-by-step explanation:

If you subtract 64 to 20% then you end up with $51.2

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2 years ago

Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p2 + 9p, where p and f(p)

Nimfa-mama [501]

Answer:

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is 202500 swordfishes.

Step-by-step explanation:

Let be $f(p) = -0.01\cdot p^{2}+9\cdot p$ , the maximum sustainable yield can be found by using first and second derivatives of the given function: (First and Second Derivative Tests)

First Derivative Test

$f'(p) = -0.02\cdot p +9$

Let equalize the resulting expression to zero and solve afterwards:

$-0.02\cdot p + 9 = 0$

$p = 450$

Second Derivative Test

$f''(p) = -0.02$

This means that result on previous part leads to an absolute maximum.

The population that gives the maximum sustainable yield is 45000 swordfishes.

The maximum sustainable yield is:

$f(450) = -0.01\cdot (450)^{2}+9\cdot (450)$

$f(450) =2025$

The maximum sustainable yield is 202500 swordfishes.

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3 years ago

Find the area of a circle with a circumference of 6.28 units.<br> units2

Nuetrik [128]

Answer:

$circumference = 2\pi r\\\\6.28 = 2\pi r\\\\r = \frac{6.28}{2\pi}$

$Area = \pi r^2 = \pi (\frac{6.28}{2\pi} )^{2} = \frac{6.28 \times6.28}{4\pi} = 3.14 square \ units$

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3 years ago

-3/5 is a whole number

Alisiya [41]

This statement is false because a whole number is a number that is a positive number that doesn't have a fraction or decimal.

8 0

3 years ago

Please help meeeeeeeeee ​

Please help meeeeeeeeee